[MattPalmer1086]

I'm not sure anyone is arguing that aliens who can build Dyson spheres HAVE to be everywhere. They could, as you say, just build one or two and live there. Or a species that colonises could build them as it goes.

[bryanrasmussen]

That was in fact the statement of the post that I replied to "If they can build Dyson spheres, wouldn't they already be all over the place?"

[MattPalmer1086]

Got it, I missed that part of it. Totally agree that just because you can build a Dyson sphere doesn't imply you're going to travel a lot.